SE395331B - DEVICE FOR DETECTING EARTH ERRORS IN MULTIPLE-PHASE POWER LINES - Google Patents

DEVICE FOR DETECTING EARTH ERRORS IN MULTIPLE-PHASE POWER LINES

Info

Publication number
SE395331B
SE395331B SE7316021A SE7316021A SE395331B SE 395331 B SE395331 B SE 395331B SE 7316021 A SE7316021 A SE 7316021A SE 7316021 A SE7316021 A SE 7316021A SE 395331 B SE395331 B SE 395331B
Authority
SE
Sweden
Prior art keywords
power lines
phase power
detecting earth
errors
earth errors
Prior art date
Application number
SE7316021A
Other languages
Swedish (sv)
Inventor
L Perez-Cavero
Original Assignee
Gen Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gen Electric Co Ltd filed Critical Gen Electric Co Ltd
Publication of SE395331B publication Critical patent/SE395331B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
    • H02H3/385—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current using at least one homopolar quantity
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
SE7316021A 1972-11-28 1973-11-27 DEVICE FOR DETECTING EARTH ERRORS IN MULTIPLE-PHASE POWER LINES SE395331B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5483472A GB1422346A (en) 1972-11-28 1972-11-28

Publications (1)

Publication Number Publication Date
SE395331B true SE395331B (en) 1977-08-08

Family

ID=10472213

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7316021A SE395331B (en) 1972-11-28 1973-11-27 DEVICE FOR DETECTING EARTH ERRORS IN MULTIPLE-PHASE POWER LINES

Country Status (7)

Country Link
US (1) US3898530A (en)
CH (1) CH573673A5 (en)
DE (1) DE2358955A1 (en)
FR (1) FR2208223B1 (en)
GB (1) GB1422346A (en)
IN (1) IN140601B (en)
SE (1) SE395331B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN143431B (en) * 1975-05-14 1977-11-26 Westinghouse Electric Corp
CH600644A5 (en) * 1975-06-19 1978-06-30 Bbc Brown Boveri & Cie
GB1526412A (en) * 1975-07-22 1978-09-27 Gen Electric Co Ltd Directional relays
US4092690A (en) * 1977-01-31 1978-05-30 General Electric Company Protective relay circuit providing a combined distance and overcurrent function
CH612046A5 (en) * 1977-04-01 1979-06-29 Bbc Brown Boveri & Cie
US4342064A (en) * 1978-02-21 1982-07-27 General Electric Company Static distance relays with improved polarizing signal
US4161011A (en) * 1978-02-21 1979-07-10 General Electric Company Ground distance relay employing phase comparator measurement
US4398232A (en) * 1981-11-13 1983-08-09 Westinghouse Electric Corp. Protective relaying methods and apparatus
AT391230B (en) * 1986-08-20 1990-09-10 Elin Union Ag DEVICE FOR DETECTING THE ZERO TRANSITIONS
CN101145683B (en) * 2007-10-31 2010-09-29 李志学 Low-voltage grid residual current control device
CN102769277B (en) * 2012-05-31 2015-01-28 德清县供电局 An improved structure of a safety protection device for a low-voltage power distribution cabinet
CN104393576B (en) * 2012-05-31 2017-09-29 国网浙江省电力公司湖州供电公司 A kind of low-voltage distribution cabinet safety protecting method
CN104078948B (en) * 2014-07-15 2016-10-19 国家电网公司 Electric transmission line positive sequence electric current phase segregated differential protection method based on short-data windows
CN113361221A (en) * 2021-06-22 2021-09-07 广东电网有限责任公司 Two-point in-phase grounding fault analysis method and related device for small-resistance grounding system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024389A (en) * 1957-06-07 1962-03-06 English Electric Co Ltd Three-phase protective relay systems
GB1021502A (en) * 1961-03-03 1966-03-02 English Electric Co Ltd Improvements in and relating to electrical protective relay systems
FR1316391A (en) * 1962-03-01 1963-01-25 English Electric Co Ltd Protection relay system for three-phase electrical circuits
GB1172536A (en) * 1966-08-31 1969-12-03 English Electric Co Ltd Improvements in Electrical Protective Relays
FR1501814A (en) * 1966-09-12 1967-11-18 Compteurs Comp D Device allowing the detection and distance measurement of earth faults in a three-phase network with earthed neutral
FR2058166A1 (en) * 1969-08-11 1971-05-28 Compteurs Comp D
JPS5512817B1 (en) * 1970-11-19 1980-04-04
CH525578A (en) * 1970-12-14 1972-07-15 Bbc Brown Boveri & Cie Distance relay for multi-phase networks

Also Published As

Publication number Publication date
IN140601B (en) 1976-12-11
GB1422346A (en) 1976-01-28
AU6285873A (en) 1975-05-29
FR2208223A1 (en) 1974-06-21
CH573673A5 (en) 1976-03-15
US3898530A (en) 1975-08-05
FR2208223B1 (en) 1978-02-24
DE2358955A1 (en) 1974-05-30

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